Building a 1500 Gallon plywood & glass tank
- Thread starter VLDesign
- Start date
I like the idea of the cement board in your build and would like to use it also. The one thing I'm wondering since I've never used it or there is none in stock at the town I live in to look at is how hard is it? Since it is scorable and has a glass mesh inside I was wondering if it would compress when the water was added or if something heavy was put on it?
How exactly are you planning to seal the joints in the cement board? You mentioned fiberglass strips. I have used fiberglass mesh tape that is used for drywall joints on Hardi board used in a tile job for a shower before. Coated the joint with Thinset, then rolled out the fiberglass tape, then coated again before going ahead and tiling. Most tile setters don't bother with the tape, but it is supposed to help prevent cracks in the tile grout.
I thought the same method might work on the joints on a tank like this, but maybe not use thinset on the joints, but just use Pond Armour instead.
I'm anxious to see how your tank works out.
Somewhere someone asked if you were going to put braces front to back on top, but I'm wondering about bowing from side to side also, since the tank is so deep front to back.
I thought the same method might work on the joints on a tank like this, but maybe not use thinset on the joints, but just use Pond Armour instead.
I'm anxious to see how your tank works out.
Somewhere someone asked if you were going to put braces front to back on top, but I'm wondering about bowing from side to side also, since the tank is so deep front to back.
I agree. Every board that touches concrete in my house is treated. I wouldn't have it any other way. I strongly suggest using treated lumber where there will be risk of condensation build-up.dmopar74;2773911; said:
Also I was wondering how much surface contact your window would have to the pond on the bottom and if that is all you would need?
This is valuable discussion on treated wood guys... but I don't think he's going to go back now, and I'm sure it will be fine as is, code or not. Maybe we can just let him get on with his build.
LOL In your home and outside are 2 very different things and you are also suppose to seal the treated decking lumber once it has sat outside and dried up. Call up any building inspector and ask about using it in your home but to say they are trying to sell their wood buy misinforming you about PT wood is plain silly and shows that you have a very limited knowledge on the subject. Google the 3 Chemicals listed in the article and AFAIK picnic table legs are the only part of the table that uses treated lumber not the part that you sit on or eat off of. And as for the article itself I posted it because it was on of the first that popped up that best explained the chemicals used in PT wood . But by all means if you feel the need to use it in your home then go ahead.dmopar74;2773911; said:
